I'm sorry you feel this way and I wish I could talk you out of it.
You can unagree to the CA but your parts have still been released under the Creative Common Attribution license. This means that, as the copyright holder, you can pull any future version of your parts from being so licensed. The existing versions, however, will remain under the CCAL as a derivative can simply be made and then attributed back to you to fulfill the license terms. This is specifically why we chose an open source license.
You can unagree to the CA but your parts have still been released under the Creative Common Attribution license. This means that, as the copyright holder, you can pull any future version of your parts from being so licensed. The existing versions, however, will remain under the CCAL as a derivative can simply be made and then attributed back to you to fulfill the license terms. This is specifically why we chose an open source license.